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Oracle Linux: CVE-2019-6133: ELSA-2019-0420: polkit security update (IMPORTANT) (Multiple Advisories)

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Oracle Linux: CVE-2019-6133: ELSA-2019-0420: polkit security update (IMPORTANT) (Multiple Advisories)

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
01/09/2019
Created
03/19/2019
Added
02/01/2019
Modified
12/17/2024

Description

In PolicyKit (aka polkit) 0.115, the "start time" protection mechanism can be bypassed because fork() is not atomic, and therefore authorization decisions are improperly cached. This is related to lack of uid checking in polkitbackend/polkitbackendinteractiveauthority.c. A vulnerability was found in polkit. When authentication is performed by a non-root user to perform an administrative task, the authentication is temporarily cached in such a way that a local attacker could impersonate the authorized process, thus gaining access to elevated privileges.

Solution(s)

  • oracle-linux-upgrade-kernel-uek

References

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